view gpp/potd/admin.py @ 552:9e42e6618168

For bitbucket issue #2, tweak the admin settings for the Post model to reduce slow queries. Define our own queryset() method so we can control the select_related(), and not have it cascade from post to topics to forums to categories. Removed 'topic' from list_display because MySQL still sucked with 2 inner joins. Now it seems to be tolerable with only one join to User.
author Brian Neal <bgneal@gmail.com>
date Wed, 25 Jan 2012 20:07:03 -0600
parents 4021ea1045f7
children
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"""
This file contains the admin definitions for the POTD application.
"""
from django.contrib import admin
from django.conf import settings

from potd.models import Photo
from potd.models import Current
from potd.models import Sequence


IMG_TAG = '<img src="%s" alt="thumbnail" />'


class PhotoAdmin(admin.ModelAdmin):
    fields = ['photo', 'caption', 'description', 'user', 'potd_count']
    raw_id_fields = ['user']
    list_display = ['__unicode__', 'thumbnail']
    actions = ['regen_thumbnail']
    search_fields = ['caption', 'description']

    class Media:
        js = settings.GPP_THIRD_PARTY_JS['tiny_mce']

    def thumbnail(self, obj):
        return IMG_TAG % obj.thumb.url
    thumbnail.allow_tags = True

    def regen_thumbnail(self, request, qs):
        """
        Regenerates the thumbnail for the selected photos.
        """
        for photo in qs:
            photo.generate_thumb()
            photo.save()

    regen_thumbnail.short_description = "Regenerate thumbs for selected photos"


class CurrentAdmin(admin.ModelAdmin):
    list_display = ('__unicode__', 'thumbnail')
    raw_id_fields = ('potd', )

    def thumbnail(self, obj):
        return IMG_TAG % obj.potd.thumb.url
    thumbnail.allow_tags = True


admin.site.register(Photo, PhotoAdmin)
admin.site.register(Current, CurrentAdmin)
admin.site.register(Sequence)